NL43688C - - Google Patents
Info
- Publication number
- NL43688C NL43688C NL43688DA NL43688C NL 43688 C NL43688 C NL 43688C NL 43688D A NL43688D A NL 43688DA NL 43688 C NL43688 C NL 43688C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE433520X | 1934-04-17 | ||
| US16486A US2273762A (en) | 1934-04-17 | 1935-04-15 | Incandescible cathode |
| US370538A US2273763A (en) | 1934-04-17 | 1940-12-17 | Incandescible cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL43688C true NL43688C (fr) |
Family
ID=32096462
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL43688D NL43688C (fr) | 1934-04-17 | ||
| NL48681D NL48681C (fr) | 1934-04-17 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL48681D NL48681C (fr) | 1934-04-17 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2273763A (fr) |
| FR (1) | FR788959A (fr) |
| GB (1) | GB433520A (fr) |
| NL (2) | NL48681C (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL48805C (fr) * | 1936-09-01 | |||
| US2422469A (en) * | 1945-07-09 | 1947-06-17 | Edward A Coomes | Electron emitting cathode |
| US2447038A (en) * | 1945-10-31 | 1948-08-17 | Raytheon Mfg Co | Cathode structure |
-
0
- NL NL43688D patent/NL43688C/xx active
- NL NL48681D patent/NL48681C/xx active
-
1935
- 1935-02-14 GB GB4785/35A patent/GB433520A/en not_active Expired
- 1935-04-17 FR FR788959D patent/FR788959A/fr not_active Expired
-
1940
- 1940-12-17 US US370538A patent/US2273763A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL48681C (fr) | |
| US2273763A (en) | 1942-02-17 |
| GB433520A (en) | 1935-08-15 |
| FR788959A (fr) | 1935-10-21 |